Submarine signaling apparatus.



E. G. WOOD. F. M. DURKEE, W. F. KELLEY & J. B. MILLET.

SUBMARINE SIGNALING APPARATUS.

APPLICATION FILED JAN. 23. 1905.

3 SHEETS-SHEET 1.

Patented May 11, 1909.

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E. 9. W001), F. M. DURKEB, w. P. KELLEY & J. BI MILLET.

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v I APPLICATION FILED JAE. 23. 1905- 921,326. Patented May 11,1909.

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' E. C. WOOD, F.'M. DURKEE, F. KELLEY & J. B. MILLET.

SUBMARINE SIGNALING APPARATUS.

APPLIOATIOH FILED JAN. 23. 1905.

Patented May 11, 1909.

3 SEEETB-SHBET 3.

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' 1 '0 all whomit miiy conc em:

STATES PATENT oFrIoE.

nnwaanc. WOOD, or SOMERVILLE, FREDERICK M. DURKEE, or NEWTON, AND WALTER-F, BOSTON, MASSACHUSETTS, ASSIGNORS To SUB- KELLEY AND JOSIAH B. MILLET, OF

MARINE SIGNAL COMPANY, OF WATEBVILLFJ, MAINEA CORPORATION OF MAINE.

,SUBMARINE SIGNALING APPARATUS.

Specification of Letters Patent.

' Patented May 11, 1909.

Application filed January 28, 1905. Serial No. 242,254.

Be it known that we, EDWARD' C. Wool), of

Somerville, Fnnonmc-K M. DURKEE, ofNew- E ton, both in the county of Middlesex, and YVAL'rEu F. KELLEY and Josmn B. MILLET, both of Boston. in the county of Suffolk, all in the State of h'lassachusetts, have invented a certain new and useful Improvement in Submarine .Sig'naling Apparatus, and do hereby declarethe following, when read in connection with the accompanying drawings, to be a full'and-exact description of our invention.

There is in practical use a system of submarine signaling which comprises signalin apparatus located under water, operate from a lightship, a buoy or a shore station, and a receiving apparatus located on-shipboard, by means of which the signalsware wicked up and transmitted to some convenient place'thereon such as the pilot house where they may be received by the shi-ps pilotor other ofiicer; a

The present invention relates-to the electrical transmission on shipboard of such signals from a microphone transmitter to a single telephone receiving circuit by which means a most delicate comparlson of such sound 1s posslb'le. The means'for picklng up and transmitting the signals which we most have in mind asbeing especially useful in this connection are those described in Letters Patent of the United States No. 7 68,568 and No. 7 68,57 0, both dated August 23, 1904.

The main object of our inventionis to provide means whereby signals so received may be conveniently and accurately used to determine the position of the ship receiving th signals; The general method of determining the position of the ship with relation to the point or points from which signals 3 are being sentis set forth in Letters States, No. 7 87,854, to Arthur Patent tit-the United I V undy and Josiah B. Millet. For this purp se'. the invention herein disclosed vs two microphone transmitters, one

o\'vi""\vatc-r tank, with means whereby eitl nsnn-tter may be connected with the sam receiving instrument or pair of Instrni'ii'ents. By this means it may not only be-tl-'eterinined which. transmitter gives t-h'e on each side ot the ship, each located telephone or-pair of telephones, an accurate comparison may be made of the strength of i curate than would be possible it each transnutter were connected to its own telephone, 111' wlnch case there would be (inferences in scribed,-the bear ng of the sound signal may v .be determined. I

A detail of the invention herein described relates to the centralizing, coiirdmatmg, and systematizmg of the various connections above described in a single instrument where whereby the indicator may haveian unset position the battery circuits are broken, and the indicator automatically disconnected from the transmitters. V

A feature of our invention is a, plurality of sets of transmitters, such for instance, as bowand stern sets, which are adapted to be circuit preliminary to or during the comparison ofistarboard or port eitects.

Another featurev of our invention is a means for visually of the particular transmitters with which the operators instrument is in circuit, and means for rendering such visual indicating means visible at night.

I stronger sound, but the sound from each i transmitter being received upon the same the telephones which would affect the com-x by ready and simple manipulation and coopor normally inoperative position, in which-- alternated .or substituted'in the indicator indicating the positionthe sound in the two transmitters, more acnecessary for accomplishing the purpose the indicator may be thrown at will into and Having briefly set. forth the general objects and nature of our invention, we shall now describe the same more particularly in connection with the accompanying drawings, in which Figure l is an elevation of the operators indicator. Fig. 2 is a topplan view thereof. Fig. 3 is a view thereof in elevation, the front face of the cover of the indicating box being removed and the various circuits or mechanisms being shown more or less diagrammatically. Fig. 4 is a diagrammatic view of the entire apparatus for the purpose of showing the electric circuits.

Referring to Figs. 1 and 2, there is shown an exterior view of the indicator, which, when in use, is mounted on shipboard in a position convenient to the pilot or operator. This indicator comprises a box A, upon which are hung telephone receivers J and K one for either ear. The box is preferably of brass, but may be of any suitable material and is provided with a removable face or cover A Projecting from the center of the box is shown a switch H, by means of which the receivers J 2 and K are placed at will in communication with either the starboard or the port transmitters. In the face or cover of the box are two openings a and a and mounted integrally with the shaft h of the switch H, behind the face of the cover A is a semaphore P, various parts of which, according to the position of 'the switch ii, are adapted to intersect the line of the openings a and (1 Within the opening a is an electric lamp M, and projecting through a slot in the lower left hand part of the box A is a switch M for opening and closing the circuit of said lamp. The shutter P at different angular positions thereon bears the symbols Starboard and Port. In the position shown in the drawings the symbol Starboard registers with the o enin a and is visible, whereas the symbol Tort being behind the face A of the box, is not visible. In this position, as visually indicated, the starboard transmitters are in circuit with the telephone receivers. The shutter P carries also at different, angular positions, two disks p and p of colored glass, the disk being colored green and the disk being colored red. When the symbol Starboard of the shutter registers with the opening a the green disk 12 registers with the opening a across the face of the lamp M. When the lamp circuit is closed as at night, the green light will indicate starboard. The position of the switch H, however, being changed to throw in the port transmitters, the'red disk 2 will register with the lamp and the opening a and thus give at night a visual indication of this position of the switch H. Projecting through a slot in the lower right hand corner of the indicator box, is shown a switch G. This general illustration 0 switch determines the particular set of transmitters to be in the circuit of the telephones. The transmitter sets controlled by this switch may be sets to be substituted for each other in case of emergency, or may be differently located sets, as for mstance, stern and bow sets, to be used according to the general direction of the signal being received.

Referring now to F i s. 3 and 4, and for a the circuit connec tions, more particularly to Fig. 4, there is here diagrammatically indicated at B the vessel upon which the entire apparatus is mounted. On either side of the keel are shown tanks B and B in which are mounted sets of transmitters. The water tanks and the particular manner of mounting the transmitters therein is disclosed in Patent No. 768,570, and forms no part of this invention. At J and K", Fig. 4, we have shown the telephone receivers of the opera torsindicator and at J and F we have shown the switch hooks upon which the receivers normally hang. The switches controlled by the switch hooks are such that when the telephones hang in their place every circuit of the indicating mechanism is broken so that the indicator is normally disconnected from each transmitter and no waste of battery occurs. The switch G is shown controlling the connections of the various transmitter sets to determine the particular set in use as above stated. The switch H is shown controlling the particu- 0 lar transmitters, whether starboard or port. of the set selected by means of the switch G; and the telephone hook switches J 3 and K as controlling the circuit of the particular transmitter selected by the switches H and G. The switch M is shown to the left, and as heretofore mentioned, controls the circuit. of the lamp M. To describe-the various circuits more in detailthe telephones J and K are shown connected in 11 series with each other by the line 2", and with the telephone battery L by the line Z. From the telephones the circuit leads by line 1 to the transmitters C, D, E, and F, which transmitters are connected by multiple branch circuits 0, d, e, and f, to the terminals 0 al e, and f respectively, of the set switch G. In addition .to the switch terminals just mentioned, the switch G is provided with spring terminals 9 and g which, when the switch G is in its normally neutral position, bear against the insulating roller 1 thereof, and are out of contact with any other terminal of the switch. When however, the switch G is thrown to the left, and into the dotted position indicated at G, the terminal is forced into contact with the terminal 1' and the terminal 9 by virtue of its resiliency snaps into position against the terminal e. In this position the census 8 with the contactk, and the port transmitter E being in circuit with the contact h.

When however, the switch .Gis in dotted position indicated by G the lines 0 and d of the transmitters C and D are in circuit 16 with the spring contacts 9 and g, and

thence, through the lines 9 and g are in circuit with the contact strips h and h of the switch H. i In this instance, as before,

the starboard transmitter of the setin use I is in circuit with the contact 12., and the port transmitter of that set with the contact k.

In addition to the contacts 7:. and h the switch H is provided with spring contacts h and h. So long as the switch H is in its central or normally inoperative position the contacts h and k bear against the insulating roller of the switch and areout of contact with the contacts h and h". When however, the switch H is thrown into the dotted position H as for instance indicated in Fig. 1, the starboard circuit 9 to the contact h is closed, through the contact It with the line h, and through the line 71,

to the spring contact j of the telephone hook switcln Should the switch -H be thrown into the dotted position H the spring 12. will spring out of contact with the contact hand the spring h be forced .into contactwith the strip k thereby cl'os- 40 mg the circuit of the port line 9* through the line to the contact strip i of the telephone switch. Thus by throwing the switch Hv either to the right or left, the starboard or port transmitter, as the case may be, is put in contact with the telephone switch.

As heretofore stated, the hook switch is shown so constructed that the battery and telephone circuit therethrongh is normally broken. The structure of this switch com- -prises .three normally insulated contact strips, a central strip j and twolparallel .strips j and j,'all resilient inchal'acter. The spring contact j is slightly longer at either end than'the contacts j? and 7' so as to engage the insulated roller of the telephone switch hook and be controlled thereby. The central contact strip is connected by lines 1* and 2* to the telephone battery L. Either receiver being removed from its hook J or K the spring is released toits natural spring action and snaps downward. contacting with the strip j and closing the circuit of the transmitter through the line/F of the battery telephones; whereupon, by placing thetelephones to the ears the signal may be received.

The circuit of the lamp M heretofore mentioned is as follows. From the lamp ig. 3) the line m extends to the spring contact *m of the'lamp switch M. In addition to the contact an? the switch liU' lIJS a' eontact'm which when the switch is in its normal or central position, is out of contact with the spring strip m". From the switch contact m? the linem leads to the lamp bat" tery M and from the battery M the lamp circuit is continued through the lines m-and Z to the central strip j of the telephone hook switch. The other terminal of the lamp M isconnected through line m to the contact strip j of the telephone hook switch. Upon removing either telephone receiver as heretofore mentioned, the action of the spring contact strip 7' is not only to cause it to contact-with the strip j'-, but its resiliency is such that it forces the strip j to contact with the strip ji, thereby closing the lamp circuit through the strips j' and j as well as closing the telephone circuit through the strips j and 7' as heretofore described.

In operation the operator upon preparing toreceive a signal first selects a set of transmitters to be used, and in doing so throws the switch G to the position G or G according to which transmitter et selected. Having thus selected the set to be employed he prepares to take a starboard or port reading by throwing the switch H to the position H? or H, as the casemay be. Should the reading be made at night, for the purpose of certainty in making his reading he. closes the switch M? setting ,the lamp clrcuit. Ila ving thus set both lamp and telephone circuits, he closes these circuits and makes his reading by removing one or both of the receivers and listening. Subsequent readi'ngs are. made by throwing the switches H and G as herein;indicated, and altering-the position of the vessel until the direction of the incoming signal has been accurately determined as described in the above-named Letters Patent No.787,854. At such a moment the. sounds in the port or starboard transmitters will be equal in intensity and the vessel will be pointed toward the signaling station. Having set forth the construction and method of using our. invention, what we claim and desire to secure by Letters Patent is r 1. Submarine signal receiving apparatus comprising an indicating means, a plurality of receiving transmitters each independent of the others, connect-ions normally open and capable of connecting each of said transmitters with said indicating means, --:and means for selectively setting the connection between said indicating means andeither of the transmitters to the exclusion of the others and means for closing the connections so set to receive the signals from said transmitter as described.

Submarine'signaling apparatus comprising indicating means, a set of transmitters, connections whereby either transmitter of said set may be laced in exclusive connection with said in icating means, selective means for setting the connection from the indicatin means to a signaltransmitter, and means or closing the connection so set to receive the signals from said transmitter, substantially as set forth.

Submarine signal receivin ap aratus comprising indicating means an a p urality of sets of transmitters, connections whereby any transmitter of any set may be placed in exclusive connection with said indicator, selective means for setting the connection from the indicator to a single transmitter set, and other selective means for setting the connection from the indicator to a single transmitter of the selected set, means for; closing the connection so set to receive the signals, substantially as described.

4. Submarine signal receiving apparatus comprising an indicating means, a plurality of sets of transmitters, connections, whereby corresponding transmitters of such sets may be placed into communication with said indicater to the exclusion of other of said trans mitters, selective means for setting the connections of such correspondl transmitters and means for closing said se ected connections to the indicator to receive a signal, substantially as described.

Submarinesignal receiving apparatus comprising an indicating means having in circuit therewith several sets of transmitters in multiple and means capable of connecting one set only of said transmitters at a time with said indicating means and means for connecting one transmitter of said connected set with said indicating means, as set forth. (3. Submarine signal apparatus comprising an indicating means having in circuit therewith a plurality of sets of transmitters, each set consisting of a plurality of variously disposed transmitters, the sets being in shunt relation to each other, and the transmitters of each set being in shunt relation to each other in the circuit of the indicator, and means for making and breaking at will the circuit of any one transmitter.

7. Submarine signal receiving apparatus comprising an indicating means having in circuit therewith a plurality of sets of transmitters, each set consisting of a plurality of variously disposed transmitters, all in shunt relation to each other, a switch having contacts equal in number to all the transmltters, to each of which contacts a transmitter is connected, said switch having also other contacts equal in number to the number of transmitters in each set, a second switch having contacts with each of which one of thence to a battery and thence in return'to the transmitters.

8. In a submarine signal receiving apparatus, an electrical indicator, aplurality of variously disposed transmitters, connections adapted to connect each transmitter to said indicator Without connectin mitters simultaneously, said indicator hav ing a receiving means connectible to each of such connections, and means for connectin said receiving means to one only of said connections at a time, and a light circuit separate from said transmitter connections and comprising a switch operable by the act of connecting said receiving means to said indicatoradapted for the purposes set forth.

9. In a submarine signal receiving apparatus, an electrical indicator, a plurality of variously disposed transmitters, connections adapted to connect each transmitter to said indicator without connectin mitters simultaneously, said indicator havin a telephone connectible to one only of sai nection and means for simultaneous y making and breaking said telephone and light connections to give audible and visual indications when desired.

10. In a submarine signal receiving apparatus, an electrical indicator, a plurality of variously disposed transmitters, connections adapted to connect each transmitter to said indlcator without so connectin an two transmitters simultaneously, sai in icator having a receiving means common to all such connections, means for connecting said receiving means to one only of said connections ata time and a visual indicator connected to and operated by said connecting means.

11. In a submarine signal receiving appa-- ratus, an electrical indicator, a plurality of variously disposed transmitters, connections adapted to connect each transmitter to said indicator without so connecting any two transmitters siumltancously, said indicator having a receiving means connectible to all such connections, means for connecting said receiving means to one only of said transmitter connections at a time, a visual indicator, and a separate light circuit for rendering said indicator visible operable by the operation of said transmitter connecting a means.

12. In a submarine signal receiving apparatus, an electrical indicator, a plurality of variouslydisposed transmitters, connections adapted to connect each transmitter to said indicator without so connectin an two transmitters simultaneously, sai in icator any two transv any two transhaving a receiving means connectible to all such connections, means for connecting said receiving means tions at a time, a'visual indicator, a separate li ht circuit for rendering said indicator adapted to. connect each transmitter to said indicator withoutso connectin any two transm tters slmultaneously, sai indicator havmg a telephone connectible to all such connections, means for connecting said telephone to one onl plone to one only of said connections at a time, a visual indicator, a light circuit for rendering said indicator visible, and means for making and breaking said light circuit operable by the operation of said'telephone connecting means.

14. In a submarine signal receiving apparatus, an electrical indicator, a plurality of variously disposed transmitters, connections adapted to connect each transmitter to said indicator without so connecting any two transmitters simultaneously, said indicator having a telephone connectible to all such connections, means for connecting said teleof said connections at a time, a visual in illuminating said visual indicator, and means for simultaneously making and breaking said light and telephone circuits.

15. In a submarine signal receiving apparatus, an electrical indicator, a plurality of variously disposed transmitters, connections adapted to connect each transmitter to said indicator withoutso connecting any two transmitters simultaneously, said indicator having a telephone connectible to all such said telephone and light circuits.

16. In a submarine signal receiving apparatus, an indicator, a plurality of variously disposed transmitters, connections adapted to-connec't each transmitter to said indicator without so connecting any two transmitters simultaneousl receivers, means for closing any one-of said connections through said receivers to the exclusion of the others, means for automatically indicating by an illumina- 'tion which one of a pair of transmitters is in circuit. I

17. In a submarine signal receiving apparatus, an indicator, a plurality of variously disposed transmitters, means adapted to connect each transmitter to said indicator withto one only of said connec- 1cator adapted to indicate the transmitter selected, a light circuit for out so connecting any two transmitters simultaneously, means for closing any of said connections, receivers connectible with one transmitter only at a time and mean for automatically -displaying both a reading and an illuminated indication of'which one of a pair of transmitters is in circuit. I

18. In a submarine signal receivin apparatus, an indicator, variously dispose trans- 'r'nitters, connections adapted to connect each transmitter to said indicator without so connecting any two transmitters simultaneously,

means for. closing any of said connect ons and means actuated in the circuit closer to indicate the circuit closed, said means consisting of a movable semaphore bearing symbols and variously colored translucent disks adapted to indicate upon" which side of the ship the connected transmitter is located and a lamp located to registerwith said disks according to the position of the shutter.

19.- In a submarine signal receiving apparatus, an indicator, a telephone, connections to variously disposed transmitters, said transmitters, means for closing any. of said connections through said telephone connectible with one transmltter only at a time,

and a light disposed with relation to said" connections as described-whereby the closing of said connections will cause the light to operation of said indicatewhich one of a pair of transmitters is in circuit. 4

20. In a submarine signal receiving apparatus, an indicator, a telephone therein, a seriesof transmitters variously disposed, and

means whereby said telephonelm'ay be connected to either 'of said transmitters to the exclusion of the others, and electrical means for visually indicating the transmitter connection, said means being located upon an open circuit closable by the act of removing the telephone for use, and means common to said connections for making and breaking the same.

2-1. In a submarine signal receiving apparatus, an indicator, a telephone therein, a series of transmitters variously disposed, and I means whereby said telephone may be connected to either one of said transmitters to the exclusion of the others, and electrical means i for visually indicating the transmitter connections, said means being located upon a normally open circuit, and a telephone hook switch for making and breaking all said circuits.

, 22; In a submarine signal receiving apparatus, an indicator, a telephone therein, connections from said telephone to variously disposed transmitters and electrical means for visually indicating the transmitter coning a contact in said telephone circuit, a conv tact in the circuit ofthe visual indicator. and

disposedtransmitters and electrical means for visually indicating the transmitter connections, said means being in parallelcircuit with the telephone, and a telephone .hook

switch for making and breaking said circuits, said switch having a contact in the telephone circuit, a contact in the circuit of the visual indicator and a contact common to both said circuits, the three contacts being electrically connected by the removal of the telephone from the hook.

2-1. In a submarine, signal receiving apparatus, telephonic receiving means, two or more sets of transmitters variously disposed, means for connecting one of said sets with said telephonic receiving means, means for selecting aparticular transmitter of said set, and means for visibly indicating which one of the transmitters of said connecting set has been so connected, all arranged as described, whereby all of said means are out of more sets of transmitters, each set being in- I dependent of the others, the several transmitters of each set being located upon different parts ofthe ship, means whereby one of said sets of transmitters may be selected in preference to the others, means whereby one transmitter of said selected set may be selected in preference to the others, and means whereby said transmitter may be brought into connection with said telephonic receiving means, as described.

EDWARD C. WOOD. FREDERICK M. DURKEE. lVALTER F. KELLEY. JOSIAH B. MILLET.

In presence of House B. GALE, A. J. Converse, JOHN E. R. IIAYES. 

